Investigators of social differentials in health outcomes commonly augment incomplete micro data by appending socioeconomic characteristics of residential areas (such as median income in a zip code) to proxy for individual characteristics. However, little empirical attention has been paid to how...

Investigators of social differentials in health outcomes commonly augment incomplete micro data by appending socioeconomic characteristics of residential areas (such as median income in a zip code) to proxy for individual characteristics. However, little empirical attention has been paid to how...

Several recent studies use the schooling and wage variation between monozygotic twins to estimate the return to schooling. In this paper, we summarize the results from this literature, and we examine the implications of endogenous determination of which twin goes to school longer and of...

The end of World War II brought a flood of returning veterans to America's colleges and universities. Yet, despite widespread rhetoric about the democratization' of higher education that came with this large pool of students, there is little evidence about the question of whether military...

Economists have devoted increasing attention to the magnitude and consequences of measurement error in their data. Most discussions of measurement error are based on the “classical” assumption that errors in measuring a particular variable are uncorrelated with the true value of that...

The end of World War II brought a flood of returning veterans to America's colleges and universities. Yet, despite widespread rhetoric about the democratization' of higher education that came with this large pool of students, there is little evidence about the question of whether military...